Monolens Petzval 56mm F/3 SLR
Standard prime lens • Digital era • Discontinued • Collectible
Specification
Optical design: | |
35mm full frame | |
56mm | |
F/3 | |
4 elements in 3 groups (Petzval lens) | |
Canon EF [44mm] | |
Minolta/Sony A [44.5mm] | |
Nikon F [46.5mm] | |
Pentax K [45.5mm] | |
Sigma SA [44mm] | |
42.2° (35mm full frame) | |
On Canon EOS APS-C [1.59x] cameras: | |
35mm equivalent focal length: | 89mm (in terms of field of view) |
35mm equivalent speed: | F/4.8 (in terms of depth of field) |
Diagonal angle of view: | 27.3° |
On Sony DSLR-A/SLT-A APS-C [1.53x] cameras: | |
35mm equivalent focal length: | 85.7mm (in terms of field of view) |
35mm equivalent speed: | F/4.6 (in terms of depth of field) |
Diagonal angle of view: | 28.3° |
On Nikon D APS-C [1.53x] cameras: | |
35mm equivalent focal length: | 85.7mm (in terms of field of view) |
35mm equivalent speed: | F/4.6 (in terms of depth of field) |
Diagonal angle of view: | 28.3° |
On Pentax K APS-C [1.53x] cameras: | |
35mm equivalent focal length: | 85.7mm (in terms of field of view) |
35mm equivalent speed: | F/4.6 (in terms of depth of field) |
Diagonal angle of view: | 28.3° |
On Sigma SD APS-C [1.74x] cameras: | |
35mm equivalent focal length: | 97.4mm (in terms of field of view) |
35mm equivalent speed: | F/5.2 (in terms of depth of field) |
Diagonal angle of view: | 25° |
Diaphragm mechanism: | |
Diaphragm type: | Fixed |
Aperture control: | None |
Focusing: | |
0.62m | |
<No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
Physical characteristics: | |
272g (mount not specified) | |
⌀51×44mm (mount not specified) | |
- | |
- | |
Accessories: | |
Screw-type 46mm | |
Not required | |
Not available |
Source of data
- Manufacturer's technical data.
Manufacturer description
The lens is designed in accordance with the first optical formula of Professor Petzval and recalculated for SLR cameras with a frame size of 24x36 mm. The focal length of 56 mm is convenient for shooting a wide range of subjects. The lens has a constant aperture ratio of 3.
The lens fully reveals its visual capabilities on full-frame cameras. However, it allows you to get spectacular pictures on cameras with smaller sensors.
Lenses with similar focal length
■Interchangeable mount (2) | |||||||||
Kiyohara Kogaku 50mm F/4.5 Soft [VK50R] [T] | M | 2 - 1 | 0.50m | ⌀40.5 | 1987 ● | ||||
Itorex 50mm F/40 Pan Focus [T] | -- | 2 - 2 | -- | ● | |||||
■Canon EF mount (1) | |||||||||
Monolens Monocle 50mm F/4 Iris Soft SLR | M | 1 - 1 | 0.60m | ⌀46 | 2016 ● | ||||
■Minolta/Sony A mount (1) | |||||||||
Monolens Monocle 50mm F/4 Iris Soft SLR | M | 1 - 1 | 0.60m | ⌀46 | 2016 ● | ||||
■Nikon F mount (1) | |||||||||
Monolens Monocle 50mm F/4 Iris Soft SLR | M | 1 - 1 | 0.60m | ⌀46 | 2016 ● | ||||
■Pentax K mount (1) | |||||||||
Monolens Monocle 50mm F/4 Iris Soft SLR | M | 1 - 1 | 0.60m | ⌀46 | 2016 ● |